2343: Pull roo.rb from Github until a new release is available

Picks up the changes from roo-rb/roo#224

Gemfile

@@ -89,7 +89,7 @@ gem "recaptcha", :require => "recaptcha/rails"
 # XLS support
 gem 'axlsx', '~> 2.1.0.pre'
 gem 'axlsx_rails'
-gem 'roo'
+gem 'roo', github: 'roo-rb/roo', ref: 'c796bfc7992f910751054e537feb8f2247f197d7'
 
 gem 'therubyracer', platforms: :ruby
 

Gemfile.lock

@@ -8,6 +8,15 @@ GIT
       jquery-rails
       railties
 
+GIT
+  remote: git://github.com/roo-rb/roo.git
+  revision: c796bfc7992f910751054e537feb8f2247f197d7
+  ref: c796bfc7992f910751054e537feb8f2247f197d7
+  specs:
+    roo (2.0.1)
+      nokogiri (~> 1)
+      rubyzip (~> 1.1, < 2.0.0)
+
 GIT
   remote: git://github.com/sassafrastech/rack-attack.git
   revision: 97e37abd881ba290034cbb15e92aabedd264ad6b
@@ -268,9 +277,6 @@ GEM
     reverse_markdown (0.8.1)
       nokogiri
     riddle (1.5.11)
-    roo (2.0.1)
-      nokogiri (~> 1)
-      rubyzip (~> 1.1, < 2.0.0)
     rspec-collection_matchers (1.1.2)
       rspec-expectations (>= 2.99.0.beta1)
     rspec-core (3.2.2)
@@ -422,7 +428,7 @@ DEPENDENCIES
   recaptcha
   responders (~> 2.0)
   reverse_markdown
-  roo
+  roo!
   rspec-collection_matchers
   rspec-rails (~> 3.0)
   sass-rails (~> 4.0.2)